Apparatus for treating pipe-bowls.



H. S. OHAPIN.

APPARATUS FOR TREATING PIPE BOWLS.

APPLIOATION FILED MAY 31,1912.

Patented 0013. 28, 1913.

INVENTOR WITNESSES TED STATES PATENT FFICEO HENRY STERLING- CHAPIN,OFBOCKVILLE CENTER,

NEW YQRK.

APPARATUS FOR TREATING PIPE-BOWLS.

novascv.

Patented Oct. 28, 1913.

1 all who/a "it" may concern Be it known that I, HENRY S. Grnirm, acitizen of the United States, and resident of Rockville Center, in thecounty of Nassau and State of New York, have invented certain new anduseful Improvements in Apparatus for Treating Pipe-Bowls, of which thefollowing is a specification.

My invention relates to the manufacture of pipes for smoking tobacco.

When an ordinary wooden pipe such as a brier or imitation brier is firstsmoked the natural resins and sometimes artificial coloring matter suchas shellac, oil or other finishing material are distilled or burned andthe products of combustion drawn in with the smoke of the tobacco. Theflavor is sickening and to such an extent that many smokers judging fromtheir first experience with a new pipe believe that they cannot smoke apipe at all although from motives of economy and because of otherattractive features of pipe smoking they would be very glad to adopt theuse of a pipe. Furthermore when an ordinary wooden pipe is broken in thefirst fresh power of ab sorption which makes the pipe smoke sweet isgone and the cells of the wood are filled or partially filled withnicotin and other substances long before the taste of the raw wood orshellac or varnish or other finishing material disappears. I have foundthat these disagreeable features may be avoided by burning the interiorof the bowl sulficiently to remove unpleasant taste-producing elementsfrom the inner surface of the wood by means of an open flame or asuitably heated device. This does not affect the mechanical strength ofthe bowl and leaves the inner surface absorptive but free from nicotin.

It is the object of this invention to provide simple, inexpensive andeasily operated mechanism for burning the interior of the pipe bowl.

The invention consists preferably of a suitably heated device adapted tolit the interior of a. pipe bowl. A guard is arranged to receive thepipe bowl and directit toward the burning element and the parts are soarranged and constructed as to avoid scorching the edge of the bowl. A.holder may also be provided and with means for rotating the bowl whileon the burning element.

Two forms of the invention are illustrated in the accompanying singlesheet of drawlugs.

Il igure l is a vertical side view and partial section showing one formof apparatus embodying the improvements of my inven tion. Fig. 2 is asimilar view of another form. Fig. 3 is a sectional View showing a bowlin place in the guard and on the burning element.

The burning element 1 is shaped according to the interior of the bowl tobe burned and is heated preferably redhot for instance, by means of theflame of a blowpipe 2. A guard 3 is arranged to receive a pipe bowl land to guide it toward the burning element. In the form shown in Fig. 1the guard is carried by an arm. 5 pivoted at (i sothat when the bowl isinserted in the guard and moves forward with it it will be automaticallycentered on the burning element. A, spring 7 normally holds the guardarm against the stop 8 away from the burning element so that the guardis not heated but can cool off readily by radiation. This guard not onlycenters the bowl and directs it toward the burner but prevents theburner from scorching the edge of the bowl and destroying its newappearance. In the form shown in Fig. l the carrier 9 also pivoted at 6has a series of spring gripping fingers or jaws 10 for holding the bowlof the pipe so that a pipe bowl nniy be inserted in the grippers 10 andwhen the arm 9 is lifted toward the right the bowl will engage in theguard 3 and the two elements travel together toward the burningelement 1. In order to enable the operator to readily rotate the bowlelwhen it is in place on the burning element to facilitate more uniformburning, the grippers or jaws 10 may be carried by a shaft 11 rotatablein the outer end of the arm 9 and having a crank handle 12 for rotatingin i In the form shown in Fig. 2 the burner is electrically heated bymeans of a re sistance coil The guard 22 shaped on its interior toreceive the pipe bowl 23 is mounted to slide on or with a rod 2 -11.spring 25 holds the g iard normally in the position of Fig. l i hen apipe bowl is inserted for instance by hand into the guard 22, the bowland guard are forced on to the burner at which time the pipe bowl may berotated to insure a more uniform burning action. \Vhen thepressure onthe bowl is removed the spring 25 throws the guard back to its normalposition.

Preferably the head of the burner is of less depth than the bowl so thatthere is less danger of burning the edge of the bowl as shown in Fig. 3.Further to protect the parts I may provide suitable thermal insulationsuch as asbestos 30 and 31. This avoids scorching the edge or exteriorof the bowl and also serves as a guard to protect the operator.

lVhile I have shown the pipe bowl and guard as movable toward the burnerand the burner as stationary and this is the pre ferred form, it isobvious that the burner may be movable toward the guard or toward thepipe bowl. It should also be understood that ventilating and aircirculating apparatus may be used in conjunction with this apparatus forremoving the products of combustion in a manner analogous to the removalof dust or dirt. from the vicinity of machines such as are commonlyemployed in shaping and finishing pipe bowls and other devices.

hat I claim is 1. Pipe treating apparatus comprising a relativelystationary burner for charring the interior oi a pipe bowl and a movableguard to receive a pipe bowl and adapted to surround the burner andlimit the movement of the bowl.

2. Apparatus for treating pipes comprising a burner for char-ring theinterior of a pipe bowl and a movable device adapted to receive a pipebowl and guide it on to the mrner and spring for automaticallyretracting said guide device from said burner when released.

Pipe treating apparatus com arising a burner havin a l1... of a sizesomewhat less 1 than the interior the bowl to he treated so as to fitinto and char the interior or the and a movable guard for receiving thebowl and preventing the edge and the outer surface of the howl frombeing charred.

6. Pipe treating apparatus comprising a burner for charring the interiorof a pipe bowl and an insulating device for fitting the edge of the pipebowl and preventing the burner trinn charring the edge of said bowl.

7. In a pipe treating apparatus, a burner head shaped to correspond withthe interior of the bowl or" the pipe to be treated and of less depththan the depth of the bowl to thereby fit into and char the interior ofthe bowl and thermal insulating means around the base of the head.

In pipe treating apparatus, a burner head shaped to correspond with theinterior of the bowl of the pipe to be treated and of less depth thanthe depth of the bowl to thereby fit into and char the interior of thebowl, thermal insulating means around the base of the head and a guardfor the edge of the pipe bowl.

Pipe treating apparatus comprising a barrier head for burning theinterior of a pipe bowl and a guard device for the pipe howl in whichthe pipe bowl may be given a motion of rotation relative to the burnerhead.

10. Pipe treating apparatus comprising a relatively stationary burnerheaa shaped to fit the interior of a pipe bowl whereby to char the innerwalls of a pipe placed over the said burner, a. relatively movablevguard arranged to receive and center the pipe bowl with respect to theburner and means directing the movement of the guard toward the burnerto thereby guide the pipe bowl into position over the burner.

11. Pipe treating apparatus comprising a burner for charring theinterior of the pipe howl, a rotatable support for the pipe bowl adaptedto he moved to hring the pipe bowl into position at said hurner andmeans for guiding said support.

12. Pipe treating apparatus comprising a burner for charring theinterior of the pipe bowl, a rotatable support for the pipe bowl adaptedto be moved to bring the pipe bowl into position at said burner, a guarrdevice adapted to be moved with said support, and means for guiding saidsupport.

HENRY STERLING CHAPIN.

lVitnesses:

Rom. S. ALLYN,

E. BRADFORD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). C. i

